Passive Optical Networks: Review and Road Ahead

This paper presents a realistic description on various Passive optical network (PON) technologies. A brief comparison between salient features of different PON technologies is also discussed. The paper elucidates the crucial driving factors which envisage innovation of next generation PON technology. To enable the new brand era of high quality triple-play services, many new techniques and procedures are embraced cognizant of the fact that backward compatibility with existing technology is the exigency of industry demand. Thus a common element which can support different types of technology on a same network architecture is discussed in this paper. The paper sheds light on some viable future technologies like 100G EPON, OCDMA-WDM PON and IFDMA-WDM PON and analyses their advantages over existing Next generation technology.